| MoS2核壳球上氧掺杂的动力学调制及其电化学分解水效应 |
| Dynamical modulation and electrochemical water splitting effect of oxygen doped onto MoS2 core-shell spheres |
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| 摘要: 在氩气气氛中900℃煅烧前驱物MoS2核壳超级球得到MoS2核壳球。在升温速率为20、10、5、2℃·min-1时，MoS2核壳球上氧掺杂量分别从前驱物的23.1%降低到17.6%、10.8%、5.5%、6.2%。结果表明较低的升温速率可以导致更低的氧掺杂量。基于前驱物特殊的准分子超晶格结构，提出了原位阴离子交换反应机理，以深入理解MoS2核壳球上氧掺杂的动力学调制机理。电化学性能研究表明通过调制氧掺杂量可以有效改善MoS2核壳球电化学分解水的性能。 |
| 关键词: MoS2 核壳球 氧掺杂 动力学调制 电化学性能 分解水 |
| 基金项目: 郑州轻工业大学博士基金(No.2018BSJJ027)和国家自然科学基金(No.21771166，1704157)资助。 |
| Abstract: Monodispersed MoS2 core-shell spheres were produced by annealing precursor MoS2 core-shell superspheres at 900 ℃ in Ar. Simultaneously, O-doping amount (atomic fraction) can be tuned from 23.1% of precursor to 17.6%, 10.8%, 5.5%, and 6.2% of as-prepared materials by regulating the heating rate of 20, 10, 5, and 2 ℃·min-1, respectively. The lower rate results in a lower amount of O doped onto MoS2 core-shell spheres. Based on the special quasi-molecular superlattices of precursors, an in-situ anion exchange reaction mechanism was proposed to understand the dynamical modulation of O-doping. The study on the electrochemical properties of the materials demonstrates that their electrochemical performance in splitting water can be improved by tuning the O-doping amount. |
| Keywords: MoS2 core-shell sphere O-doped dynamical modulation electrochemical property water splitting |
| 投稿时间：2023-10-18 修订日期：2023-12-20 |
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| 巩飞龙,刘静轩,刘梦梦,许三魁,李峰.MoS2核壳球上氧掺杂的动力学调制及其电化学分解水效应[J].无机化学学报,2024,40(1):256-262. |
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| Support information: 相关附件： file20230390_无机化学-Supporting_Information-revised.doc |
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